#! /bin/sh
# Copyright (C) 2002-2021 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

# Check that Automake can emit code that work round the inability of
# some make implementations to automatically chain suffix rules.
# See automake bug#7824 and bug#7670.

required=cc
. test-init.sh

plan_ 8

cat >> configure.ac <<'END'
AC_PROG_CC
AC_OUTPUT
END

cat > Makefile.am <<'END'
bin_PROGRAMS = foo
foo_SOURCES = foo.c1
.c1.c0:
	(echo 'int main (void)' && echo '{' && cat $<) > $@
.c0.c:
	(cat $< && echo '}') > $@
CLEANFILES = foo.c0 foo.c
END

echo 'return 0;' > foo.c1

command_ok_ "aclocal"   $ACLOCAL
command_ok_ "automake"  $AUTOMAKE
command_ok_ "autoconf"  $AUTOCONF
command_ok_ "configure" ./configure

directive=''; make_can_chain_suffix_rules || directive=TODO

for target in all distcheck; do
  command_ok_ "make $target" \
              -D "$directive" -r "suffix rules not chained" \
              $MAKE $target
done

command_ok_ "clean" $MAKE clean
# Sanity check.
cat >> Makefile <<'END'
foo.c: foo.c0
foo.c0: foo.c1
END
command_ok_ "make with explicit dependencies" $MAKE

:
